Glossary

Glossary

This glossary more specifically relates to oil and gas exploration and production terms.

Accumulation:
Quantity of hydrocarbons (oil and natural gas) found in the reservoir rock in an oil or gas field.
Albian:
The oldest terrain from the secondary (also called "Cretaceous") era.
Alkylation:
A chemical reaction that consists in fixing an alkyl radical (formula: CnH2n+1) onto a molecule. This technique is used in refining to produce high octane gasolines comprising 8 atoms from gassy molecules containing 4 atoms.
Amino acids:
Fundamental constituents of proteins, with both an acid and a basal function.
Appraisal well:
A well drilled in order to evaluate the characteristics of a field.
Aquifer:
a geologic formation of porous rock that is permanently or periodically saturated with water.
Assisted recovery:
Set of techniques for increasing the productivity of a field.
Associated gas:
Gases present in the reservoir rock.
Atom:
Particle of a chemical element forming the smallest unit capable of combining with another.